changed readme
changed readme

conekta/conekta-php,Curiosity-Education/curiosity-v.1.0,andradedev/conekta-php,joecohens/conekta-php,ebanx/conekta-php,Curiosity-Education/curiosity-v.1.0,Curiosity-Education/curiosity-v.1.0,julianceballos/conekta-php